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Novel fume hood

A fume hood, a new type of technology, applied in the directions of removing smoke and dust, cleaning methods and utensils, chemical instruments and methods, etc., can solve the problems of air and temperature loss, inconvenience of experimenters, air pressure imbalance, etc., to reduce energy consumption and air. Loss, easy experimental operation, reducing room temperature and the effect of air loss

Inactive Publication Date: 2012-05-30
刘辉荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It ensures the smooth discharge of toxic, harmful, and odorous gases, making the experimental environment meet the safety requirements stipulated by national regulations. However, traditional fume hoods use forced ventilation to discharge toxic gases outside, resulting in serious loss of indoor air and temperature. The imbalance of air pressure brings inconvenience to the experimenters and even hidden dangers in the experiment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, the novel fume hood includes a cabinet body 1, a safety sliding door 2 is provided on the front side of the cabinet body 1, a central control system 3 on the cabinet body 1, and lighting equipment is arranged on the top of the cabinet body 1 to ensure that the light is good during operation (illuminance Not less than 400LUX); the cabinet is divided into upper and lower layers, the upper part is the experimental operation part, and the lower part can place experimental equipment and other items; the operating table is a solid physical and chemical board, which is resistant to strong acids and alkalis. The countertop is recessed, which can store a certain volume of liquid and prevent harmful liquid from spilling out; the front of the cabinet 1 is also equipped with a surface wind speed sensor 5, which is electrically connected to the central control system 3, and is measured by measuring the air flow between the fume hood and the surrounding envi...

Embodiment 2

[0026] Such as figure 2 As shown, on the basis of Embodiment 1, a supplementary air outlet 7 is opened on the inner side of the cabinet body 1, and the outdoor fresh air is sent into the cabinet body 1 through an axial flow fan connected to a PVC air duct with a diameter of 90 mm. The central control system 3 is electrically connected with the axial flow fan, and the supplementary air volume can be controlled through the axial flow fan, and the outdoor fresh air is transmitted into the cabinet 1 through the supplementary air duct 6 at the top of the cabinet 1 .

Embodiment 3

[0028] Such as image 3 , Figure 4 As shown, the overall technical solution of embodiment 3 is the same as that of embodiment 1, the difference is that the control panel 8 installed on the front of the cabinet body 1, the central control system 3 is electrically connected to the control panel 8, and the control panel 8 is optional The water and air control valves are located on the right hand side of the best position for human operation. Control panel 8 comprises fan switch 81, emergency switch 82, safety sliding door opening key 83, safety sliding door closing key 84, light switch 85. The safety sliding door opening key 83 and the safety sliding door closing key 84 can be adjusted at any height; when the emergency switch 82 is started, the safety sliding door 2 is completely closed, and the exhaust air volume is adjusted to the maximum, avoiding the potential danger of the experiment.

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Abstract

The invention discloses a novel fume hood. The fume hood comprises a body, wherein the body is provided with an electric air valve; a lifting safety sliding door is arranged on the front of the body; and a face velocity sensor is also arranged on the front of the body. The fume hood also comprises a central control system electrically connected with the electric air valve, the safety sliding door and the face velocity sensor, wherein the face velocity sensor monitors pressure changes in the body after the safety sliding door is lifted, converts the values of pressure changes in the body into electrical signals and transmits the electrical signals to the central control system; and the opening angle of the electric air valve and lifting of the safety sliding door are controlled by the central control system. The fume hood has the following beneficial effects that: energy consumption and air loss in the laboratory are greatly reduced so that a relatively stable environment is maintained for experiments, thus achieving the aims of energy conservation and environmental protection and greatly improving the comfort level and environmental protection property of the laboratory.

Description

technical field [0001] The invention relates to a novel fume hood. Background technique [0002] Fume hood is a kind of ventilation equipment widely used at home and abroad. The fume hood has complete functions and tight protection, which not only provides comprehensive protection for operators, but also can withstand the corrosion of various chemical acids and alkalis and organic reagents, and does not contaminate the experimental samples inside. It ensures the smooth discharge of toxic, harmful, and odorous gases, making the experimental environment meet the safety requirements stipulated by national regulations. However, traditional fume hoods use forced ventilation to discharge toxic gases outside, causing serious loss of indoor air and temperature. The imbalance of air pressure brings inconvenience to the experimenters and even hidden dangers in the experiment. Contents of the invention [0003] The object of the invention aims to provide a kind of novel fume hood, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B15/00
Inventor 刘辉荣
Owner 刘辉荣
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